mororana, Chloea Jordan [D. S.] & Snyder [J. O.] 1901:80, Fig. 14 [Proceedings of the United States National Museum v. 24 (no. 1244); ref. 2509] Mororan, Hokkaido, Japan. Holotype: CAS-SU 6452. Paratypes: CAS-SU 6619 (19), 6634 (2), 6661 (10), 22014 (73); USNM 49942 (4). Type catalog: Koumans 1940:142 [ref. 2676] as cotypes in SU 6661, Böhlke 1953:109 [ref. 12291]. •Valid as Chaenogobius mororanus (Jordan & Snyder 1901) -- (Akihito in Masuda et al. 1984:276 [ref. 6441], Choi et al. 2003:399, 658 [ref. 26218]). •Valid as Gymnogobius mororanus (Jordan & Snyder 1901) -- (Lindberg & Krasyukova 1975:381 [ref. 7348], Nakabo 2000:1198 [ref. 25182], Pietsch et al. 2001:146 [ref. 25688], Nakabo 2002:1198 [ref. 26193], Stevenson 2002:293 [ref. 26489], Bogutskaya & Naseka 2004:223 [ref. 28183], Vasil'eva 2003:S46 [ref. 28444], Zhao et al. 2007:454 [ref. 29515], Parin et al. 2014:487 [ref. 33547], Dyldin & Orlov 2017:190 [ref. 35257] with question, Dyldin et al. 2021:36 [ref. 38804] with question, Ito et al. 2021:[9] [ref. 38897], Parenti 2021:298 [ref. 38603]). Current status: Valid as Gymnogobius mororanus (Jordan & Snyder 1901). Oxudercidae: Gobionellinae. Distribution: Northwestern Pacific: Japan, Korea, Russia and southern Kuril Islands. Habitat: brackish, marine.